Extraordinary Russian Pyrite Ammonite Pendant - setting in 925 Sterling Silver - Unique Piece

approx size with eyelet:

Unique piece - goldsmith work - Handmade large necklace pendant of a pyritized ammonite in an exceptionally fine and noble .925 sterling silver setting

The Ammonite is a find from Russia

The body of the ammonite presents one of the finest natural examples of a logarithmic spiral / golden section. Each piece is unique due to its naturally grown material structure.